<?php
/**
 * DOMPDF - PHP5 HTML to PDF renderer
 *
 * File: $RCSfile: block_positioner.cls.php,v $
 * Created on: 2004-06-08
 *
 * Copyright (c) 2004 - Benj Carson <benjcarson@digitaljunkies.ca>
 *
 * This library is free software; you can redistribute it and/or
 * modify it under the terms of the GNU Lesser General Public
 * License as published by the Free Software Foundation; either
 * version 2.1 of the License, or (at your option) any later version.
 *
 * This library is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
 * Lesser General Public License for more details.
 *
 * You should have received a copy of the GNU Lesser General Public License
 * along with this library in the file LICENSE.LGPL; if not, write to the
 * Free Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
 * 02111-1307 USA
 *
 * Alternatively, you may distribute this software under the terms of the
 * PHP License, version 3.0 or later.  A copy of this license should have
 * been distributed with this file in the file LICENSE.PHP .  If this is not
 * the case, you can obtain a copy at http://www.php.net/license/3_0.txt.
 *
 * The latest version of DOMPDF might be available at:
 * http://www.dompdf.com/
 *
 * @link http://www.dompdf.com/
 * @copyright 2004 Benj Carson
 * @author Benj Carson <benjcarson@digitaljunkies.ca>
 * @package dompdf

 */

/* $Id: block_positioner.cls.php 356 2011-01-28 08:56:10Z fabien.menager $ */

/**
 * Positions block frames
 *
 * @access private
 * @package dompdf
 */
class Block_Positioner extends Positioner {


  function __construct(Frame_Decorator $frame) { parent::__construct($frame); }
  
  //........................................................................

  function position() {
    $frame = $this->_frame;
    $style = $frame->get_style();
    $cb = $frame->get_containing_block();
    $p = $frame->find_block_parent();
    
    if ( $p ) {
      $float = $style->float;
      if ( !DOMPDF_ENABLE_CSS_FLOAT || !$float || $float === "none" ) {
        $p->add_line();
      }
      $y = $p->get_current_line("y");
      
    } else
      $y = $cb["y"];

    $x = $cb["x"];

    // Relative positionning
    if ( $style->position === "relative" ) {
      $top =    $style->length_in_pt($style->top,    $cb["h"]);
      //$right =  $style->length_in_pt($style->right,  $cb["w"]);
      //$bottom = $style->length_in_pt($style->bottom, $cb["h"]);
      $left =   $style->length_in_pt($style->left,   $cb["w"]);
      
      $x += $left;
      $y += $top;
    }
    
    $frame->set_position($x, $y);
  }
}
